Originally Posted by Rackinoff
I'm planning a brewday this weekend. Due to time/family contraints I'm thinking of mashing and collecting my wort Sat night and boil and pitch on Sun. Am I playing with fire? Can anyone see any potential for disaster with this?
If you read around on the forum a bit more, you'll find many people who do exactly that on a regular basis, pre-boil or post-boil, and sometimes even go a few weeks
before pitching the yeast.
If your sanitization is good enough, you can do almost anything reasonable with it. I'd certainly think that overnight is fine as long as you do your damndest to keep things clean.
Besides, if you boil the next day it'll kill anything that might have gotten in.
Plus it'll give you time to set up a starter if you wish, using a little of your wort thinned out with more (sanitized) water. Shake the crap out of it, let sit overnight, and pitch the whole thing the next day. You won't need to worry so much about aeration, and you'll get a head start on the yeast growth.